Festival of Flowers: Alzafar Shrine, 901 N. Loop 1604 West, safestivalofflowers.com. Local experts will present seminars about landscaping, lawn care and roses during the 16th annual festival. The event will also include a plant exchange, horticulture show, vendors and cooking classes presented by the San Antonio Herb Market Association. $6; free for children 12 and younger. 9 a.m.-5 p.m.

Feral Hog Management: Floresville Event Center, 600 Texas 97 West, Floresville, 830-780-3906. The Texas A&M AgriLife Extension Services in Wilson and Karnes counties will discuss general and integrated management, laws and regulations on feral hogs. The workshop will also include a discussion on lower San Antonio River watershed and safety. $10. May 31. 8 a.m.-3:15 p.m.

Medina Lake Home & Garden Tour: Medina Lake Civic Center on Park Road 37, Lakehills, 830-751-3130, 830-751-2727. The Medina Lake Betterment Association will host its sixth tour of homes and gardens around Medina Lake. The tour will include transportation to three homes, two gardens, luncheon and plant sale. $25 before Saturday, $30 after. June 8. 8:30 a.m. and 9:30 a.m.